Comparative study on the production of biohydrogen from rice mill wastewater

Ramprakash, Balasubramani; Muthukumar, Karuppan

doi:10.1016/j.ijhydene.2014.06.029

Cited by 74 publications

(18 citation statements)

References 44 publications

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“…The general range of COD removal efficiencies in fermentative hydrogen production processes is between 20 and 40% (O-Thong et al 2008). However, higher efficiencies have been exhibited with various other studies; COD removal of 71.8% was obtained during the fermentation of enzymatic hydrolysed rice mill wastewater (Ramprakash and Muthukumar 2014). About 75% efficiency was recorded for the fermentation of paper and pulp industry effluent with Enterobacter aerogenes (Lakshmidevi and Muthukumar 2010).…”

Section: Process Variables: Ph Cod and Glucosementioning

confidence: 96%

“…From the overall results, the highest reduction percentage was observed in the 4% alkali treated substrate with P. mirabilis, which is in line with the result of hydrogen production. The COD removal efficiency of an organism is a characteristic feature determining its hydrogen production capability (Ramprakash and Muthukumar 2014). The general range of COD removal efficiencies in fermentative hydrogen production processes is between 20 and 40% (O-Thong et al 2008).…”

Section: Process Variables: Ph Cod and Glucosementioning

confidence: 99%

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Biohydrogen production by locally isolated facultative bacterial species using the biomass of Eichhornia crassipes: effect of acid and alkali treatment

Mechery¹,

Biji²,

Thomas³

et al. 2017

Energ. Ecol. Environ.

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Hydrogen (H 2 ) produced from biological methods is a potential option to meet the growing clean energy needs. The present study aimed to produce biohydrogen by dark fermentation from nuisance aquatic weed, Eichhornia crassipes, using facultative anaerobic bacteria. A total of 12 bacterial strains were isolated from different wastewater sources and were screened for the potential of H 2 production using glucose as carbon source. Ten strains showed the H 2 -producing potential and were identified up to the generic level by biochemical tests. Two strains with higher H 2 production were sequenced using PCR technique and identified as Proteus mirabilis and Pseudomonas aeruginosa and selected for the studies with E. crassipes as the substrate. It was found that P. aeruginosa could produce 19.54 ± 0.03% of H 2 from 2% acid (H 2 SO 4 ) treated substrate which was comparatively higher than that of 4 and 8% treatments. P. mirabilis also yielded better results of 5.42 ± 0.02% H 2 f or 2% acid (H 2 SO 4 ) treated substrate than 4 and 8% treatments. In total, 33.52 ± 0.04% of H 2 was produced by P. aeruginosa for the substrate treated with 2% alkali (NaOH). It was noted that with respect to P. mirabilis 4% alkali treated substrate yielded a higher percentage of H 2 (20.23 ± 0.03%) compared to the other two concentrations. The results indicate that alkali treated substrate produced comparatively higher amount of H 2 than that of acid treated substrates. Regarding efficiency, P. aeruginosa was found to be more competent than P. mirabilis.

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Section: Process Variables: Ph Cod and Glucosementioning

confidence: 96%

Section: Process Variables: Ph Cod and Glucosementioning

confidence: 99%

Biohydrogen production by locally isolated facultative bacterial species using the biomass of Eichhornia crassipes: effect of acid and alkali treatment

Mechery¹,

Biji²,

Thomas³

et al. 2017

Energ. Ecol. Environ.

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“…Then, the effluent was kept at 4 C for further use. The characteristics of the wastewater were reported in our earlier study [21].…”

Section: Effluentmentioning

confidence: 97%

“…The contents were kept in an orbital shaker at150 rpm and at ambient temperature (33 ± 2 C) for 12e24 h. The fungal strain Aspergillus niger (MTCC 2208) used in this study was obtained from the Microbial Type Culture Collection centre (MTCC), Chandigarh, India. The growth conditions of A. niger were given in our earlier study [21].…”

Section: Microorganismmentioning

confidence: 99%

Comparative study on the performance of various pretreatment and hydrolysis methods for the production of biohydrogen using Enterobacter aerogenes RM 08 from rice mill wastewater

Ramprakash

2015

International Journal of Hydrogen Energy

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“…The concentrated acid hydrolysis offers high sugar recovery effi ciency, up to 90% of both hemicelluloses and cellulose sugars. However, this technique does have a number of drawbacks such as relatively low yield and formation of undesirable by-products (Ramprakash and Muthukumar 2014).…”

Section: Acid Hydrolysis (Lintnerization)mentioning

confidence: 99%

Utilization of damaged and spoiled wheat grains for bioethanol production

Razdan¹,

Kocher²

2018

Biosci. Biotech. Res. Comm

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First generation ethanol from starchy crops particularly maize is an established technology that being a renewable and bio-based resource has advantages over gasoline. The second generation ethanol from lignocellulosics owing to its economic considerations is still at pilot scale and is yet to see commercialization. This has increased the demand of starchy feed-stocks for energy. The recently released National Policy on Biofuels in May, 2018 categorically also emphasizes on the potential of different raw materials for ethanol production by consenting the utilization of damaged food grains like wheat, broken rice etc. that area otherwise unfi t for human consumption. As far as wheat is concerned, The Comptroller and Auditor General (CAG), India (2017) reported that Food Corporation of India's (FCI) wheat stock worth 700 crores was damaged solely in Punjab from 2011 to 2016 as the grain was kept in open areas attributed to the lack in storage facility. Development of effi cient technology to pretreat and convert damaged starch into fermentable sugars and optimization of enzymatic hydrolysis using commercial as well as indigenous enzyme preparation are the key points for the effi cient bioethanol production from damaged wheat. Further, the synergistic action of alpha and glucoamylase in the hydrolysis of wheat mash have been tried that has revealed 96.25% conversion effi ciency with an ethanol yield 5.60 % (v/v). The present review discusses research progress in bioethanol production from damaged wheat grains containing higher starch content. Thus, utilization of especially damaged and spoiled wheat grains pave better way for commercialization of bioethanol production from an economical perspective.

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Comparative study on the production of biohydrogen from rice mill wastewater

Cited by 74 publications

References 44 publications

Biohydrogen production by locally isolated facultative bacterial species using the biomass of Eichhornia crassipes: effect of acid and alkali treatment

Biohydrogen production by locally isolated facultative bacterial species using the biomass of Eichhornia crassipes: effect of acid and alkali treatment

Comparative study on the performance of various pretreatment and hydrolysis methods for the production of biohydrogen using Enterobacter aerogenes RM 08 from rice mill wastewater

Utilization of damaged and spoiled wheat grains for bioethanol production

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